title: Extraction of heavy metals from soils using biodegradable chelating agents.
mesh_terms: D001673:Biodegradation, Environmental; D002614:Chelating Agents / Q000737:chemistry* / Q000378:metabolism; D004787:Environmental Pollution / Q000517:prevention & control*; D006863:Hydrogen-Ion Concentration; D019216:Metals, Heavy / Q000737:chemistry / Q000302:isolation & purification*; D012989:Soil Pollutants / Q000302:isolation & purification*
chemical_list: D002614:Chelating Agents; D019216:Metals, Heavy; D012989:Soil Pollutants